?The CSO Roundtable began its special programming on Monday with "Investigating Crime in the C-Suite."

Corporate investigations are serious matters that must be approached with the right balance of tenacity and sensitivity so the truth can be revealed. But when that investigation concerns senior executives, conditions become even more tenuous.

"It's a significant challenge to investigate the CEO of one of your subsidiaries either in Russia, in Mexico, or in Brazil, for example," said Martin Barye-Garcia, security director, the Americas, Mars Inc. "The investigators sometimes are afraid not just for their jobs, but for their lives. There are certain segments of the international arena that are known for being hard players."

He recommended organizations seek out subject matter experts including investigators and attorneys with expertise in the particular countries it deals with.�

Steven Braden, CPP, vice president of security at Capital One, said at his company, if the investigation meets certain criteria, Braden will notify the board of directors and specifically, the audit committee. This helps ensure the investigation is conducted independently and with integrity, he noted. The chair of the audit committee has the power to decide whether the investigation remains in house or is conducted by an outside firm.

Jihadism in Europe. During the CSO Roundtable session "Growing Threat: Jihadism in Europe," two presenters educated attendees about terrorism trends abroad, explaining how European nationals are increasingly being recruited to terrorist organizations to carry out attacks.

"The majority of recent attacks in Europe have been conducted by these homegrown extremist individuals who don't necessarily have previous experience in conflict zones," said speaker Ashley Allen, an analyst with the Overseas Security Advisory Council (OSAC). She noted that organizations like ISIL (Islamic State of Iraq and the Levant), also known as ISIS, are becoming more sophisticated at using social media as a tool to spread propaganda.

While homegrown terrorists were considered a threat prior to ISIL, a relatively new phenomenon is the emergence of foreign fighters, said Yekaterina Plitsyna, also an analyst at OSAC. ISIL is recruiting these individuals to come to Iraq and Syria to fight against Shiite Muslims.

There are an estimated 20,000 foreign fighters from 100 countries currently in Iraq and Syria. Intelligence reports indicate that there was a 71 percent increase in foreign fighters worldwide between mid-2014 and March 2015.

Other programming on Monday included "Building a Global Security Program."?